If you weren't a Justin Bieber fan before, you certainly won't be one after watching his very unfunny promo spots for his upcoming "Saturday Night Live" appearance.

The Stratford, Ont., superstar, who is pulling double duties as host and musical guest this weekend, posted some very dry and unfunny clips with "SNL" castmember Kenan Thompson on his Twitter feed today.

But, if slinky eyeglasses and half-witted attempts at mocking Biebs' popularity are your thing, you may just enjoy it.

Check it out Justin Bieber's unbeliebably bad promos below:

And if you are into trivia, and you're wondering how many other artists have hosted and been the musical guest in the same episode, there's quite a few - 25 to be exact.